2008 INFINITI FX35 service

EM-54
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
FRONT TIMING CHAIN CASE
Removal and InstallationINFOID:0000000001325728
NOTE:
 This section describes removal/installation procedure
of front timing chain case and timing chain related
parts without removing oil pan (upper) on the vehicle.
 When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain related
parts, and rear timing chain case in this order, and install in reverse order of removal. Refer to EM-64, "
Com-
ponent".
 Refer to EM-64, "
Component" for component parts location.
REMOVAL
1. Disconnect negative battery terminal. Refer to SC-4, "How to Handle Battery".
2. Remove engine cover with power tool. Refer to EM-19, "
Component".
3. Remove air cleaner case assembly. Refer to EM-17, "
Component".
4. Remove front and rear engine undercover with power tool.
5. Release the fuel pressure. Refer to EC-87, "
Fuel Pressure Check".
6. Drain engine oil. Refer to LU-7, "
Changing Engine Oil".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine oil on drive belts.
7. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
8. Separate engine harnesses removing their brackets from front timing chain case.
9. Remove drive belts. Refer to EM-15, "
Removal and Installation".
10. Remove intake manifold colle ctors (upper and lower). Refer to EM-19, "
Component".
11. Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to PS-27, "
On-Vehicle Inspection and Service".
12. Remove power steering oil pump bracket. Refer to PS-27, "
On-Vehicle Inspection and Service".
13. Remove alternator. Refer to SC-19, "
System Description".
14. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
15. Remove intake valve timing control covers.  Loosen mounting bolts in reverse order as shown in the figure.
 Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
Shaft is internally jointed wi th camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.
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FRONT TIMING CHAIN CASEEM-55
< SERVICE INFORMATION > [VQ35DE]
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16. Remove collared O-ring from front timing chain case (left and
right side).
17. Remove rocker covers (right and left banks). Refer to EM-51, "
Component".
NOTE:
When only timing chain (primary) is removed, rocker cover does not need to be removed.
18. Obtain No. 1 cylinder at TDC of its compression stroke as follows: NOTE:
When timing chain is not removed/installed, this step is not required.
a. Rotate crankshaft pulley clockwise to align timing mark (grooved line without color) with timing indicator.
b. Make sure that intake and exhaust cam noses on No. 1 cylinder (engine front side of right bank) are located as shown in the fig-
ure.
 If not, turn crankshaft one revolution (360 degrees) and alignas shown in the figure.
NOTE:
When only timing chain (primary) is removed, rocker cover does
not need to be removed. To make sure that No. 1 cylinder is at
its compression TDC, remove front timing chain case first. Then
check mating marks on camshaft sprockets. Refer to EM-65,
"Removal and Installation".
19. Remove crankshaft pulley as follows:
a. Remove rear cover plate (2WD models) or star ter motor (AWD models) and set ring gear stopper (SST).
Refer to EM-30, "
Component (2WD Models)" (2WD models) or SC-8, "System Description" (AWD mod-
els).
b. Loosen crankshaft pulley bolt and locate bolt seating surface as 10 mm (0.39 in) from its original position.
CAUTION:
Do not remove crankshaft pulley bolt as it will be used as a
supporting point for suitable puller.
PBIC2631E
KBIA1717J
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PBIC1103E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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EM-56
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
c. Place suitable puller tab on holes of crankshaft pulley, and pull
crankshaft pulley through.
CAUTION:
Do not put suitable puller tab on crankshaft pulley periph-
ery, as this will damage internal damper.
20. Remove oil pan (lower). Refer to EM-30, "
Component (2WD Models)".
21. Loosen two mounting bolts in front of oil pan (upper) with power tool in reverse order shown in figure.
22. Remove front timing chain case as follows:
a. Loosen mounting bolts with power tool in reverse order as shown in the figure.
b. Insert suitable tool into the notch at the top of front timing chain
case as shown (1).
c. Pry off case by moving a tool as shown (2).  Use the seal cutter [SST: KV10111100 (J37228)] to cut liquidgasket for removal.
CAUTION:
 Do not use a screwdrivers or something similar.
 After removal, handle front timing chain case carefully
so it does not tilt, cant, or warp under a load.
EMQ0477D
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FRONT TIMING CHAIN CASEEM-57
< SERVICE INFORMATION > [VQ35DE]
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23. Remove O-rings from rear timing chain case.
24. Remove oil pan gasket (front). Refer to
EM-30, "
Component (2WD Models)".
25. Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.  Use the seal cutter [SST: KV10111100 (J37228)] to cut liquid gasket for removal.
26. Remove front oil seal from front timing chain case using a suit- able tool.
 Use a screwdriver for removal.
CAUTION:
Exercise care not to damage front timing chain case.
27. Remove timing chain and related parts. Refer to EM-64, "
Component".
28. Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases and oil pan (upper), and liquid gas-
ket mating surfaces.
CAUTION:
Be careful not to allow gasket fragments to enter oil pan.
 Remove old liquid gasket from bolt hole and thread.
PBIC2548E
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EM-58
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
29. Use a scraper to remove all traces of liquid gasket from water
pump cover, chain tensioner cover and intake valve timing con-
trol covers.
INSTALLATION
1. Install timing chain and related parts. Refer to EM-64, "Component".
2. Hammer dowel pins (right and left) into front timing chain case up to a point close to taper in order to shorten protrusion length.
3. Install front oil seal on front timing chain case.  Apply new engine oil to the oil seal lip and dust seal lip.
 Install it so that each seal lip is oriented as shown in the figure.
 Using a suitable drift [outer diameter: 60 mm (2.36 in)], press-fit oil seal until it becomes flush with front timing chain case
end face.
 Make sure the garter spring is in position and seal lip is not inverted.
4. Install water pump cover and chain tensioner cover to front timing chain case.
SEM926E
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FRONT TIMING CHAIN CASEEM-59
< SERVICE INFORMATION > [VQ35DE]
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 Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to front timing chain case as shown
in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
5. Install front timing chain case as follows:
a. Apply a continuous bead of liquid gasket with the tube presser (commercial service tool) to fr ont timing chain case back side as
shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
b. Install new oil pan gasket (front).  Apply liquid gasket to oil pan gasket (front) as shown in the fig-ure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44
.
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SEM964E
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EM-60
< SERVICE INFORMATION >[VQ35DE]
FRONT TIMING CHAIN CASE
 Align notch of front timing chain case with protrusion of oil pan
gasket.
 Apply liquid gasket with the tube presser (commercial service tool) to top surface of oil pan (upper) as shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
c. Install new O-rings on rear timing chain case.
d. Assemble front timing chain case as follows:
i. Fit lower end of front timing chain case tightly onto top face of oil pan (upper). From the fitting point, make entire front timing chain
case contact rear timing chain case completely.
CAUTION:
Be careful that oil pan gasket is in place.
ii. Since front timing chain case is offset for difference of bolt holes, tighten bolts temporarily with holding front timing chain case
from front and top as shown in the figure.
For bolt length and positions, refer to the step e.
iii. Same as the step ii, insert dowel pin with holding front timing chain case from front and top completely.
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FRONT TIMING CHAIN CASEEM-61
< SERVICE INFORMATION > [VQ35DE]
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e. Tighten mounting bolts to the specified torque in numerical order
as shown in the figure.
 There are two types of mounting bolts. Refer to the followingfor locating bolts.
f. After all bolts tightened, retighten them to the specified torque in numerical order as shown in the figure.
6. Install two mounting bolts in front of oil pan (upper) in numerical order as shown in figure.
7. Install oil pan (lower). Refer to EM-30, "
Component (2WD Models)".
8. Install intake valve timing control covers as follows:
a. Install new seal rings in shaft grooves.
b. Apply a continuous bead of liquid gasket with the tube presser (commercial service tool) to intake valve timing control covers as
shown in the figure.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to
GI-44, "
Recommended Chemical Product and Sealant".
c. Install new collared O-rings in front timing chain case oil hole (left and right sides).
d. Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain case with the holes to install intake valve timing control covers.M8 bolts : 1, 2
: 28.4 N·m (2.9 kg-m, 21 ft-lb)
M6 bolts : Except the above
: 12.7 N·m (1.3 kg-m, 9 ft-lb)
: 17.2 N·m (1.8 kg-m, 13 ft-lb)
KBIA1303E
PBIC1116E
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PBIC2631E
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